PortConMaine

PortConMaine bills itself as Maine's geek culture celebration and describes itself as the state's first, longest-running and largest convention of its kind. It is traditionally held on the last weekend of June in the Portland area; the 2026 edition was the first at the Holiday Inn by the Bay.

The 2027 convention opens on June 24. Ordering a badge before June 1 saves $5 per badge, and tickets are sold through Eventeny. Cosplay applications for the Masquerade open in April 2027 and close in May.

The official site links a separate weapon and prop guide; read it before bringing a costume weapon, and check the site for confirmation of the 2027 venue.